The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 11, 2006
Filed:
Jun. 18, 2004
Khil Ohk Kang, Seoul, KR;
Kee Teok Park, Ichon-Shi, KR;
Khil Ohk Kang, Seoul, KR;
Kee Teok Park, Ichon-Shi, KR;
Hynix Semiconductor Inc., Kyungki-Do, KR;
Abstract
The present invention discloses a circuit for detecting a negative word line voltage including a detecting unit for detecting a negative word line voltage in a detection node by using a plurality of loads coupled in series between a power supply terminal and a negative word line voltage terminal, a test signal generating unit for generating a plurality of test signals for detecting variations of the negative word line voltage, and a control unit driven according to the test signals, for controlling a potential of the detection node by adjusting a number of the loads of the detecting unit. The circuit for detecting the negative word line voltage can detect a wanted level of negative word line voltage by using the plurality of test signals without modifying the circuit, to reduce a development period of DRAM semiconductor products.